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Create socket on first sendto if family agnostic udp() was used 

Create socket and set family on first sendto() if udp() was created
without address family.

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
master
Natanael Copa 2017-01-25 12:43:29 +01:00
parent a0baab5f3c
commit 3041a808c3
1 changed files with 21 additions and 0 deletions
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21
src/udp.c
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@ -189,6 +189,27 @@ static int meth_sendto(lua_State *L) {
lua_pushstring(L, gai_strerror(err));
return 2;
}
/* create socket if on first sendto if AF_UNSPEC was set */
if (udp->family == AF_UNSPEC && udp->sock == SOCKET_INVALID) {
struct addrinfo *ap;
const char *errstr = NULL;
for (ap = ai; ap != NULL; ap = ap->ai_next) {
errstr = inet_trycreate(&udp->sock, ap->ai_family, SOCK_DGRAM, 0);
if (errstr == NULL) {
socket_setnonblocking(&udp->sock);
udp->family = ap->ai_family;
break;
}
}
if (errstr != NULL) {
lua_pushnil(L);
lua_pushstring(L, errstr);
freeaddrinfo(ai);
return 2;
}
}
timeout_markstart(tm);
err = socket_sendto(&udp->sock, data, count, &sent, ai->ai_addr,
(socklen_t) ai->ai_addrlen, tm);